USACE publishes Notice of Intent to prepare EIS for Trilogy's Arctic Project

Trilogy Metals Inc.

US Army Corps of Engineers published NOI on Sept 21, 2026, formally commencing NEPA review and public scoping.
Arctic Project is high-grade copper-zinc-lead-gold-silver deposit in Alaska's Ambler Mining District, advanced by Ambler Metals LLC.
Ambler Metals is Trilogy Metals' 50/50 JV with South32 (ASX/LSE/JSE: S32; ADR: SOUHY).
Targets draft EIS in October 2027 and Record of Decision in September 2028, completing overall permitting by November 2028.
USACE received Clean Water Act Section 404 permit application on April 20, 2026; FAST-41 schedule aims to speed review.

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